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Normal Which lock system is safe .pdf

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Which Lock System is Safe ?
When selecting a locking system for a safe, there is a tendency to underestimate the fact that a lock
must not only be capable of withstanding possible attacks but must also allow, in daily practice, a
practical and safe access management. Even the best lock is useless if its access keys are readily
available by any malicious individual.
The convenience and security in the day-to-day management of access control system keys are precisely
factors that significantly differentiate the different types of locks. Let's see why.
Key lock
The key lock has the undeniable advantage of being simple and less expensive. However, it poses a
major security problem: the management of the key. If the key is left in the environment where the safe
is present, the chances are that thieves can find it and use it to open the safe quietly. If there were a
safe place in the house that the thieves would never be able to find, then it would have to be used
directly to keep their belongings!
The problem is that such a place does not exist because, among other things, the keys to safes are large
and therefore difficult to conceal. One solution might be to always have the key on oneself, but that,
Apart from not being practical, involves several risks: losing it, getting it stolen or copying.
The only truly safe solution would be to keep the key in a place other than the safe (such as the parents'
place). However, this is not practical because, whenever you want to use the safe, you first have to
collect the key and then bring it back.
Electronic Combination Lock
The electronic combination access control system, by eliminating the key, solves these problems at the
root. There are electronic safes that do not have a key, so there are no management problems, and
there are many that come with the emergency key that allows the door to be opened even in the case of
power failure, or forgetting the code. This key is less difficult to manage because it can only be used very
rarely, if not in an emergency, and can be kept more easily in a place other than the one where the safe
is located.
Mechanical combination lock
The considerations made for the electronic combination lock also apply to the mechanical combination
lock. Compared to the electronic solution, the automated solution carries a minimal risk of failure. On
the other hand, it allows a limited number of combinations.
Mechanical combination locks do not pose the problem of the key either. However, compared to
electronic locks, they have a much more limited number of combinations.
Biometric opening lock
Combination locks, electronic or mechanical, brilliantly solve the problem of key management but have
another potential disadvantage: the risk of forgetting the code. Fingerprint Access Control System deal
with this issue by allowing readers to access a single physical characteristic of each, such as the retina or,
more commonly in the domestic environment, fingerprints. The fingerprint is practical and safe because
it is unique, non-reproducible, cannot be mislaid and is always literally "at hand.”

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